CVE-2013-5351
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedHeap-based buffer overflow in IrfanView before 4.37 allows remote attackers to execute arbitrary code via the LZW code stream in a GIF file.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceHeap-based buffer overflow in IrfanView's GIF parsing engine when decompressing LZW code streams in maliciously crafted GIF files, allowing remote code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 4.36= 1.70= 1.75= 1.80= 1.85= 1.90= 1.95= 1.97= 1.98= 1.98a= 1.99= 2.00CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Locate IrfanView installationCheck common installation directories for i_view32.exe or i_view64.exe (typically C:\Program Files\IrfanView\ or C:\Program Files (x86)\IrfanView\). Verify the executable exists on the system.Affected if IrfanView is not installed on the system.
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Determine installed IrfanView versionRight-click the IrfanView executable (i_view32.exe or i_view64.exe), select Properties, and view the Version tab to find the File Version. Alternatively, open IrfanView and navigate to Help > About IrfanView to see the version number.Affected if The installed version matches any of the following: 1.70, 1.75, 1.80, 1.85, 1.90, 1.95, 1.97, 1.98, 1.98a, 1.99, 2.00, or any version 4.36 or lower.
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Verify GIF plugin is presentNavigate to the IrfanView plugins directory (usually C:\Program Files\IrfanView\Plugins\ or C:\Program Files (x86)\IrfanView\Plugins\) and confirm the presence of GIF support files (such as gif.ini or associated GIF handling DLLs).Affected if GIF plugin files are missing and IrfanView cannot process GIF files (not affected).
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Confirm GIF processing capabilityAttempt to open a valid GIF file in IrfanView, or check the Configure > Plugins/Options menu to verify GIF reading is enabled and listed as a supported format.Affected if GIF files can be opened and processed by IrfanView, meaning the vulnerable GIF parsing code is active.
You are affected if IrfanView is installed with GIF support enabled and the version number matches 1.70, 1.75, 1.80, 1.85, 1.90, 1.95, 1.97, 1.98, 1.98a, 1.99, 2.00, or any version 4.36 or lower.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpdate IrfanView to version 4.37 or later to obtain the patched binary; refrain from opening untrusted GIF files from unknown sources.
- Consultation1.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-5351 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2013-5351 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data